<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>冒泡排序</title>
	</head>
	<body>
		<script>
			//冒泡排序
			var arr = [2,10,8,4,9,20,5];
				for(var i = 0; i <arr.length - 1; i++) {
					for(var j = 0; j <arr.length - i - 1; j++) {
						if(arr[j] > arr[j + 1]) {
							var temp = arr[j];
							arr[j] = arr[j+1];
							arr[j+1] = temp;
						}
					}
				}
			console.log(arr);
		</script>
	</body>
</html>
